List of All Articles with Tag 'space'

By Kanishka Singh WASHINGTON (Reuters) -The U.S. Justice Department sued Elon Musk-owned rocket and satellite company SpaceX on Thursday for

Scientists have seen one of the mysterious “dark spots” on Neptune from Earth for the first ever time. Researchers spotted the feature using the European Southern Observatory’s Very Large Telescope, or VLT. Using that telescope, astronomers were able to examine a large dark spot – which was joined by a smaller, bright spot, they said, of a kind that has never seen before. Scientists still do not know why those spots form on Neptune’s blue atmosphere. But they hope that the new observations could help answer questions about their origin. “Since the first discovery of a dark spot, I’ve always wondered what these short-lived and elusive dark features are,” said Patrick Irwin, professor at the University of Oxford and lead investigator of the study. It has already helped rule out one possibility: that the dark spots are caused when the clouds on the planet clear. The observations instead suggest that the spot is formed when air particles make a layer below the main one go darker, caused by ice and haze mixing in the atmosphere. Understanding the spots has been difficult because they leave the planet’s surface as mysteriously as they arise. They have also been difficult for researchers to actually examine, given the difficulty of spotting them through telescopes. Previously, scientists were forced to send spacecraft to see the spots, and the first was observed in 1989, when Nasa’s Voyager 2 flew past. It disappeared a few years later. In recent years, scientists have been able to examine them with the Hubble Space Telescope, which has seen more spots on the atmosphere. When it did so, astronomers were able to point ground-based telescopes towards them, allowing for more detailed research. “This is an astounding increase in humanity’s ability to observe the cosmos,” said Michael Wong, a researcher at the University of California, Berkeley and a co-author on the paper. “At first, we could only detect these spots by sending a spacecraft there, like Voyager. “Then we gained the ability to make them out remotely with Hubble. Finally, technology has advanced to enable this from the ground.” The new observations allowed scientists to examine the spot using the VLT’s Multi Unit Spectroscopic Explorer, which let them split the light from Neptune and the spot into its component colours. That in turn means that astronomers can understand the height at which the spot sits, and how the atmosphere is composed. As well as helping examine the dark spots, scientists also saw a surprise result: another, entirely new kind of bright spot. “In the process we discovered a rare deep bright cloud type that had never been identified before, even from space,” said Wong. The work is described in a new paper, ‘Cloud structure of dark spots and storms in Neptune’s atmosphere’, published in Nature Astronomy. Read More Mysterious dark spot on Neptune detected from Earth for the first time We just received the first ever pictures taken near the Moon’s uncharted south pole Chandrayaan-3 mission rover exits Moon lander to explore lunar south pole Mysterious dark spot on Neptune detected from Earth for the first time We just received the first ever pictures taken near the Moon’s uncharted south pole Chandrayaan-3 mission rover exits Moon lander to explore lunar south pole

By YP Rajesh, Sakshi Dayal NEW DELHI (Reuters) -The moon rover of India's Chandrayaan-3 exited the spacecraft on Thursday to

Fort Solis' cast looks promising.

(Reuters) -Elon Musk-owned SpaceX is working with Cloudflare to boost the performance of its satellite internet service Starlink, the Information

Scientists are hoping to receive a message from aliens imminently, after waiting for 30 years. But the chances are slim: the message was sent to a star that does not appear to have any planets, and there will only be an hour to hear the message. It is 40 years since Japanese astronomers Masaki Morimoto and Hisashi Hirabayashi composed a message intended to show what humans are like and how life works on Earth, and send it into the cosmos. They did so using a telescope at Stanford University and sent a message to Altair, a star 16.7 light years away that could potentially have life around it. Decades on, a team led by Shinya Narusawa at the University of Hyogo will use a large Japanese telescope to try and see if anything is sending back a reply to our message. Astronomers believe that it is conceivable a reply would come around now, given the distance to the star and the time that has elapsed. They will listen for messages coming from the star on 22 August. That date was chosen because of its significance in Japan’s Tanabata star festival, which symbolically celebrates the meeting of two deities Orihime and Hikoboshi, the latter of which is represented by Altair. Narusawa is hopeful that aliens are out there somewhere and that the message could have really been sent towards alien life around the distant star. “A large number of exoplanets have been detected since the 1990s,” he told Japanese newspaper The Asahi Shimbun. “Altair may have a planet whose environment can sustain life.” The original message was sent on 15 August, 1983, as part of a collaboration with a Japanese weekly comic anthology. But the attempt to contact aliens never seemed entirely serious, and so any scientists involved are unlikely to be disappointed. In 2008, when the email was unearthed, Hirabayashi admitted that the pair had been drunk when they came up with the idea of sending the message, according to Gizmodo at the time. “I believe in aliens, but they are very difficult to find,” he said then. He also noted that he had received an array of messages from schoolchildren about the message, which had made sending it worth it. Read More Exact number of people needed for a Mars colony found – and it’s less than you think Strange hidden ‘structures’ hundreds of metres deep discovered on dark side of moon Russia’s Luna-25 spacecraft crashes into moon in failed mission

By Nivedita Bhattacharjee BENGALURU India's space agency on Monday released images its spacecraft took of the far side

The price of bitcoin has dropped nearly 9% since early Thursday as part of a broader sell-off of risky assets. A report that Elon Musk's Space X had dumped the cryptocurrency stoked investors' fears.

A group of amateur radio enthusiasts have set up a beacon in the UK that allows anyone to observe meteors as they burn through the Earth’s atmosphere. The UK Meteor Beacon project uses radio signals to identify meteorites as they pass through a 400 km-wide section of sky over England and Wales. The data is then displayed on a live online feed, with meteors appearing as blue streaks that emit a ping followed by a trailing pitch. The system captures more than 100 meteors every hour, even during times of relatively low activity. For the upcoming Perseid meteor shower, which peaks on 12 August, the frequency could be in the region of thousands per hour as Earth passes through the tail of the Swift-Tuttle comet. Unlike optical astronomy, the use of radio signals mean that meteors can be observed in nearly any weather conditions at all hours of the day and night. It also means that the system can pick up smaller meteors that may not appear as ‘shooting stars’ to the naked eye. This method of observation could potentially lead to the discovery of new meteor showers, which could then be tracked to uncover previously unknown comets. The radio transmitter is based at the Sherwood Observatory near Mansfield in Nottinghamshire, however receivers can be placed anywhere in the country. “The transmitter is illuminating the sky above Mansfield with radio signals that can be reflected by meteors and their trails,” Brian Coleman, who designed the system’s hardware and has a receiver in his back garden, told The Independent. “Even outside the Perseids and other meteor showers we’re seeing them at a rate of two a minute – and we can observe them day and night no matter what the weather. Only thunderstorms and lightning can interfere with it.” It is the first meteor beacon system run by amateur radio and astronomy volunteers in the UK, and has already received funding from the Radio Society of Great Britain and the British Astronomical Association. It has also gained the attention of academic and citizen scientists keen on studying meteors. Setting up the beacon transmitter is only the first part of the project, with the four-person team now planning to design and deploy echo receivers that can be distributed throughout the country at distances of up to 1,200 km from the Sherwood Observatory. The receivers can be built for as little as £10, according to Mr Coleman, using plastic pipes and other materials found in DIY stores. His hope is that the low cost will encourage schools to set up their own receivers to develop STEM-related projects that will encourage students to explore radio engineering and astronomy. Observations of the meteors from different directions can also be used to calculate the location and trajectory of meteors, with the team currently trying to establish whether it is possible to triangulate the meteors by studying the horizontal lines and blue smudges that appear on the waterfall display. Such measurements are currently possible with military-grade pulse radar systems, but it has never been done before on this scale. If it is possible, then knowing the speed and direction of the meteors will allow them to calculate the landing spot of any meteors that make it through the Earth’s ionosphere without burning up completely. These samples can then be studied to offer a better understanding of the universe. “The ultimate ambition is to have a system like Blitzortung, which uses a network of ground-based detectors to track live lightning strikes around the planet,” Mr Coleman said. “If successful, we could observe meteors entering Earth’s atmosphere in real-time throughout the world – but there’s still a lot of work to do before we achieve that.” Read More Amateur astronomers make ‘major breakthrough’ in saving Earth from asteroids ‘It’s becoming like an airport’: How SpaceX normalised rocket launches Perseid meteor shower offers best chance to see a ‘shooting star’ in 2023 Watch live: Russian cosmonauts step out of ISS to perform spacewalk Earth hit by powerful ‘X-1’ solar flare, after fears of ‘cannibal’ blast

The Earth narrowly avoided being hit by a “cannibal” solar flare – but has been lashed by powerful enough blasts to disrupt communications. In recent days, space weather forecasters had warned that the Earth could be hit by a range of powerful flares that have been ejected from the Sun. Particular warnings focused on the “cannibal” flare, which was forecast to potentially glance Earth. “Cannibal” solar flares are formed when a later blast catches up with one that was ejected earlier, and consumes it. The energy of the two is combined, which can make them far more powerful than flares that are released on their own. The latest cannibal flare appears to have missed Earth, however. Forecasts had suggested that it was only expected to glance the planet, and so a miss was perhaps likely. The Earth was struck by an X-class flare, however. That is the most potent category of solar flares, and can cause considerable disruption on Earth. This time around, space weather experts warned that the blast was enough to disrupt radio and navigation signals in North America. It was measured as an R3 blackout – on a scale that runs from 1 to 5 – which meant that areas in the US and Canada as well as on the Pacific Ocean were at risk of having radio signals and navigation disrupted. The Sun moves through a cycle of activity every 11 years, during which it releases more and less “coronal mass ejections” or CMEs, and it is currently in a particularly busy part of that cycle. Those CMEs can bring energetic flares that hit Earth – and could one day cause considerable problems on the planet, disrupting energy grids and other important infrastructure. The latest flare was measured at X1.5 and is the 20th such X flare to have hit the Earth in its current period. It came out of a particularly active part of the Sun, and followed other, weaker flares, the UK’s Met Office said. Nonetheless, experts said the “minor ongoing solar radiation storm” was “waning” and that it did not expect significant disruption in the coming days. Read More Giant space ‘umbrella’ tethered to asteroid could protect Earth from climate crisis James Webb Space Telescope captures new images of the Ring Nebula Massive solar storm strikes Earth, Moon and Mars together for first time in history

Nasa has received a “heartbeat” signal from its Voyager 2 spacecraft – but it is still lost in space. Over the weekend, Nasa announced that it had lost contact with Voyager 2, which was launched in 1977 and is now hovering on the edge of the solar system. The space agency had inadvertently sent a message to the craft that instructed it to turn its antenna two-degrees from Earth. That in turn meant that it lost contact with the Deep Space Network, or DSN, a collection of ground-based antennas that allow for contact with distant spacecraft. Engineers feared that they would not hear from Voyager 2 until October at the earliest. Then, it will automatically adjust itself, resetting its orientation and pointing the spacecraft back towards the Earth, when the space agency hoped it would make contact. But Nasa has now heard a “carrier signal” from Voyager 2, sent back as the Deep Space Network scanned the sky. The space agency compared the signal to a “heartbeat”, in that it confirms that the probe is still safe and sending messages back down to Earth. Engineers will now try and send commands to Voyager 2, instructing it to re-orient itself and point back at Earth. If that happens then it will be able to continue on again as normal, flying out into interstellar space and providing scientists with information as it goes. The instructions might not get through, however. If that happens then engineers will be powerless to correct their mistake. That will mean they will be back to waiting until October, which will bring the point at which the spacecraft’s software will automatically tell it to reset its direction. Read More Giant space ‘umbrella’ tethered to asteroid could protect Earth from climate crisis Songs, books and films inspired by the blue moon ESA’s Euclid space telescope captures glittering galaxies and stars in first images

The truth is out there, but you may have to search every corner of the image before solving the puzzle.